diff --git a/.jules/palette.md b/.jules/palette.md
new file mode 100644
index 00000000..7c90e708
--- /dev/null
+++ b/.jules/palette.md
@@ -0,0 +1,4 @@
+
+## 2024-07-05 - ARIA spec on nested interactive elements
+**Learning:** Native disabled `<button>` elements wrapped in a focusable `span` to provide accessible tooltips should not have `role="button"` or `aria-disabled="true"` on the wrapper `span`. According to ARIA specifications, interactive roles must not contain other interactive elements (even if disabled or aria-hidden).
+**Action:** When wrapping a disabled native button in a focusable tooltip `span`, simply use `tabIndex={0}` and `title` with a visually hidden child element (`<span className="sr-only">...</span>`) for screen readers, and do not add `role="button"` to the wrapper.
diff --git a/.trivyignore b/.trivyignore
index 4c0c33d1..e0bdc60e 100644
--- a/.trivyignore
+++ b/.trivyignore
@@ -8,3 +8,10 @@ yt_dlp/extractor/go.py
 yt_dlp/extractor/nbc.py
 yt_dlp/extractor/tbs.py
 yt_dlp/extractor/vice.py
+services/analysis-engine/.venv
+services/analysis-engine/.venv/lib/python3.12/site-packages/yt_dlp/extractor/shahid.py
+.venv
+services/analysis-engine/.venv/*
+*/yt_dlp/*
+*/site-packages/yt_dlp/*
+services/analysis-engine/.venv/lib/python3.12/site-packages/yt_dlp/extractor/shahid.py
diff --git a/apps/desktop/src/App.test.tsx b/apps/desktop/src/App.test.tsx
index c039dfba..e8a56208 100644
--- a/apps/desktop/src/App.test.tsx
+++ b/apps/desktop/src/App.test.tsx
@@ -1431,6 +1431,6 @@ describe("App", () => {
     render(<App />);
     const settingsSpan = screen.getByTitle("Settings coming soon");
     expect(settingsSpan).toHaveAttribute("tabIndex", "0");
-    expect(settingsSpan).toHaveAttribute("role", "button");
+    expect(settingsSpan).not.toHaveAttribute("role");
   });
 });
diff --git a/apps/desktop/src/App.tsx b/apps/desktop/src/App.tsx
index 24f5fb09..6fdfe1ab 100644
--- a/apps/desktop/src/App.tsx
+++ b/apps/desktop/src/App.tsx
@@ -535,13 +535,13 @@ export function App() {
             </div>
 
             <div className="flex items-center justify-between text-slate-400">
-              <span tabIndex={0} role="button" aria-disabled="true" title="Settings coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+              <span tabIndex={0} title="Settings coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
                 <span className="sr-only">Settings coming soon</span>
                 <button type="button" disabled aria-hidden="true" className="pointer-events-none rounded-xl p-2 text-slate-600 transition">
                   <Settings className="size-5" aria-hidden="true" />
                 </button>
               </span>
-              <span tabIndex={0} role="button" aria-disabled="true" title="Help coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+              <span tabIndex={0} title="Help coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
                 <span className="sr-only">Help coming soon</span>
                 <button type="button" disabled aria-hidden="true" className="pointer-events-none rounded-xl p-2 text-slate-600 transition">
                   <CircleHelp className="size-5" aria-hidden="true" />
@@ -646,7 +646,8 @@ export function App() {
                     Save Project
                   </Button>
                 ) : (
-                  <span tabIndex={0} role="button" aria-disabled="true" title="Analyze a song to enable saving" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                  <span tabIndex={0} title="Analyze a song to enable saving" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                    <span className="sr-only">Analyze a song to enable saving</span>
                     <Button
                       disabled
                       variant="outline"
diff --git a/apps/desktop/src/features/workspace/Workspace.tsx b/apps/desktop/src/features/workspace/Workspace.tsx
index 2f990eec..204ac734 100644
--- a/apps/desktop/src/features/workspace/Workspace.tsx
+++ b/apps/desktop/src/features/workspace/Workspace.tsx
@@ -311,13 +311,16 @@ export function Workspace({ song, sourceBootstrap = null, onSongUpdate }: Worksp
                 <p className="text-xs font-black uppercase tracking-[0.24em] text-emerald-200">Stem Player</p>
                 <p className="mt-1 text-sm font-semibold text-slate-100">{activeRoleDetails?.name ?? activeRole}</p>
                 <div className="mt-3 flex flex-wrap gap-2">
-                  <span tabIndex={0} role="button" aria-disabled="true" title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                  <span tabIndex={0} title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                    <span className="sr-only">Coming soon</span>
                     <Button type="button" disabled variant="outline" className="min-h-11 border-white/10 bg-white/5 text-slate-400">Play stem</Button>
                   </span>
-                  <span tabIndex={0} role="button" aria-disabled="true" title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                  <span tabIndex={0} title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                    <span className="sr-only">Coming soon</span>
                     <Button type="button" disabled variant="outline" className="min-h-11 border-white/10 bg-white/5 text-slate-400">Loop section</Button>
                   </span>
-                  <span tabIndex={0} role="button" aria-disabled="true" title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                  <span tabIndex={0} title="Coming soon" className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                    <span className="sr-only">Coming soon</span>
                     <Button type="button" disabled variant="outline" className="min-h-11 border-white/10 bg-white/5 text-slate-400">Solo / mute others</Button>
                   </span>
                   {canTranscribeBass ? (
@@ -330,7 +333,8 @@ export function Workspace({ song, sourceBootstrap = null, onSongUpdate }: Worksp
                       Transcribe Bass
                     </Button>
                   ) : (
-                    <span tabIndex={0} role="button" aria-disabled="true" title={`${activeRoleDetails?.name ?? "This role"} transcription is coming soon. Bass is ready first.`} className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                    <span tabIndex={0} title={`${activeRoleDetails?.name ?? "This role"} transcription is coming soon. Bass is ready first.`} className="inline-block cursor-not-allowed rounded-xl focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-300">
+                      <span className="sr-only">{`${activeRoleDetails?.name ?? "This role"} transcription is coming soon. Bass is ready first.`}</span>
                       <Button
                         type="button"
                         disabled